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Title: Dual neutron flux/temperature measurement sensor

Abstract

Simultaneous measurement of neutron flux and temperature is provided by a single sensor which includes a phosphor mixture having two principal constituents. The first constituent is a neutron sensitive 6LiF and the second is a rare-earth activated Y203 thermophosphor. The mixture is coated on the end of a fiber optic, while the opposite end of the fiber optic is coupled to a light detector. The detected light scintillations are quantified for neutron flux determination, and the decay is measured for temperature determination.

Inventors:
 [1];  [2];  [1]
+ Show Inventor Affiliations
  1. Oak Ridge, TN
  2. Knoxville, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
869524
Patent Number(s):
5352040
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
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DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
dual; neutron; flux; temperature; measurement; sensor; simultaneous; provided; single; phosphor; mixture; principal; constituents; constituent; sensitive; 6lif; rare-earth; activated; y203; thermophosphor; coated; fiber; optic; opposite; coupled; light; detector; detected; scintillations; quantified; determination; decay; measured; simultaneous measurement; fiber optic; neutron flux; temperature measurement; light detector; neutron sensitive; temperature determination; single sensor; detected light; flux determination; temperature measure; phosphor mixture; /374/250/252/

Citation Formats

Mihalczo, John T, Simpson, Marc L, and McElhaney, Stephanie A. Dual neutron flux/temperature measurement sensor. United States: N. p., 1994. Web.
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Mihalczo, John T, Simpson, Marc L, & McElhaney, Stephanie A. Dual neutron flux/temperature measurement sensor. United States.
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Mihalczo, John T, Simpson, Marc L, and McElhaney, Stephanie A. Sat . "Dual neutron flux/temperature measurement sensor". United States. https://www.osti.gov/servlets/purl/869524.
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@article{osti_869524,
title = {Dual neutron flux/temperature measurement sensor},
author = {Mihalczo, John T and Simpson, Marc L and McElhaney, Stephanie A},
abstractNote = {Simultaneous measurement of neutron flux and temperature is provided by a single sensor which includes a phosphor mixture having two principal constituents. The first constituent is a neutron sensitive 6LiF and the second is a rare-earth activated Y203 thermophosphor. The mixture is coated on the end of a fiber optic, while the opposite end of the fiber optic is coupled to a light detector. The detected light scintillations are quantified for neutron flux determination, and the decay is measured for temperature determination.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}
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Works referenced in this record:

Remote thermometry of moving surfaces by laser-induced fluorescence of surface-bonded phosphor
conference, January 1984

  • Cates, M. R.; Allison, S. W.; Franks, L. A.
  • ICALEO® ‘83: Proceedings of the Inspection, Measurement and Control Symposium, International Congress on Applications of Lasers & Electro-Optics
  • https://doi.org/10.2351/1.5057507

Remote Thermometry In A Combustion Environment Using The Phosphor Technique
conference, August 1987

Scintillator for Thermal Neutrons using Li 6 F and ZnS (Ag)
journal, October 1960

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